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Three-dimensional $Co_{9}S_{8}$nanotube network/sulfur composite cathode with enhanced lithium-sulfur battery performance
| Content Provider | Scilit |
|---|---|
| Author | Pu, Jun Shen, Zihan Li, Jiachen |
| Copyright Year | 2020 |
| Description | Journal: Nanotechnology The poor conductivity of sulfur and the "shuttle effect" of polysulfide intermediates have hindered the development of next generation lithium-sulfur (Li-S) batteries with high energy and low consumption. Herein, novel Co9S8-S composite nanotubes are developed to efficiently alleviate above-mentioned problems. Experiments and theoretical calculations show that Co9S8 has strong adsorption on soluble polysulfides. This can not only restrain polysulfides diffusion and ensure their utilization, but also enhance the intimate contact between the active materials and the conductive substrates to promote the kinetics of conversion reaction. The three-dimensional (3D) conductive network with high surface area formed by interlinking Co9S8 nanotubes further improves the electronic conductivity of the composite cathode. As a result, the Co9S8-S cathode shows a high capacity of 1153 mAh g−1. After 500 cycles, it shows a high capacity of 462 mAh g−1 (2 C) with a negligible capacity decay of ~0.04% per cycle. |
| Related Links | https://iopscience.iop.org/article/10.1088/1361-6528/ab85ec/pdf |
| ISSN | 09574484 |
| e-ISSN | 13616528 |
| DOI | 10.1088/1361-6528/ab85ec |
| Journal | Nanotechnology |
| Issue Number | 29 |
| Volume Number | 31 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2020-04-02 |
| Access Restriction | Open |
| Subject Keyword | Journal: Nanotechnology First Principle Calculation Lithium-sulfur Batteries |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering |
